1 files changed, 2 insertions, 0 deletions
diff --git a/css/css.c b/css/css.c
index 99d31f857..0c0a4f560 100644
--- a/css/css.c
+++ b/css/css.c
@@ -98,6 +98,8 @@ nserror nscss_create_css_data(struct content_css_data *c,
 	c->imports = NULL;
 	if (charset != NULL)
 		c->charset = strdup(charset);
+	else
+		c->charset = NULL;
 
 	error = css_stylesheet_create(CSS_LEVEL_21, charset,
 			url, NULL, quirks, false,